class AAA {
   static {
      System.out.println("我是AAA中的静态块！");
   }
}
public class E4 {
   static {
      System.out.println("我是最先被执行的静态块!");
   }
   public static void main(String args[]) {
      AAA a=new AAA();
      System.out.println("我在了解静态(static)块");
   }
}
